Servicing Motherboard Components - Sun Microsystems Sun Fire X4450 Service Manual

4
C H A P T E R

Servicing Motherboard Components

This chapter describes how to replace the motherboard and its components in the
Sun Fire X4450 server.
Note – Before performing any of the procedures in this chapter, perform the
procedures described in
The following topics are covered in this chapter:
Section 4.1, "Servicing FB-DIMMs" on page 4-2
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Section 4.2, "Servicing the Memory Tray" on page 4-11
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Section 4.3, "Replacing the Memory Riser" on page 4-14
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Section 4.4, "Servicing the Air Duct" on page 4-16
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Section 4.5, "Servicing PCIe Risers" on page 4-20
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Section 4.6, "Servicing PCIe Cards" on page 4-22
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Section 4.7, "Servicing the Battery" on page 4-28
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Section 4.8, "Servicing the Motherboard Assembly" on page 4-29
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Section 4.9, "Servicing CPUs" on page 4-35
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Section 4.10, "Resetting Passwords and Clearing CMOS NVRAM" on page 4-43
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Section 4.11, "Recovering from Corrupt Service Processor Software" on page 4-46
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Caution – Never attempt to run the server with the covers removed. There is
hazardous voltage present.
Caution – Equipment damage possible. The covers must be in place for proper air
flow.
Chapter 2, Preparing to Service the System.
(CRU)
(CRU)
(CRU)
(CRU)
(CRU)
(CRU)
(CRU)
(FRU)
(FRU)
4-1